Molding-machine.



PATENTED DEC. 10, 1907-.-

H. POCOGK. MOLDING MACHINE. APPLICATION mum 0OT.18, 1906.

2 SHBETSSHEET PATENTED DEC! 10, 1907.

H. POGOCK. MOLDING MACHINE.

APPLICATION FILED 0011s, 1906.

2 SHEETS-$513111 2.

In/nfor 27 M. 2 W r m 5 f S Elf O ea P Witnesses if fW LZ/ 1n: mumsPITERS co. msmunrcn. D. c,

HENRY POOOOK, OF LONDON, ONTARIO, CANADA.

MOLDING-MACHINE Specification of Letters Patent.

Patented Dec. 10, 1907.

A li ti filed October 18, 1906. Serial No. 339.505.

T 0 all whom it may concern:

Be it known that I, HENRY PooooK, of the city of London, in the countyof Middlesex, Province of Ontario, in the Dominion of Canada, haveinvented certain new and useful Improvements in Molding-Machines; and Ido hereby declare that the following is a full, clear, and exactdescription of the same.

The invention relates to improvements in molding machines, as set forthin the following specification and illustrated by the accompanyingdrawings that form part of the same.

The invention consists essentially of a frame, a plate or palletcovering in said frame and forming the bottom of the mold and having anopening therethrough, a core rigidly secured to said frame and risingthrough said opening, and a mold frame closing down on saidplate andforming the sides of the mold.

The object of the invention is to simplify the .method of producingdrain tiles and to devise a convenient and reliable machine whereby oneoperation of the molding may be instantly followed by a secondoperation, and thus cheapen the cost of manufacture.

In the drawings Figure 1 is a perspective view of the invention showingone of the cores in cross section, and a portion of the plate or palletcut away, and the mold frame in its open position. Fig. 2 is aperspective view of the machine in readiness to have the material to bemolded placed therein. Fig. 3 is a longitudinal sectional view. Fig. 4is an elevation of the machine from one end.

Fig. 5 is a cross sectional view of the machine through one of thecores.

Like letters of reference indicate corresponding parts in each figure.

Referring to the drawings, a are the ends of the frame of the machinestanding on the feet I), and preferably formed of metal having theflange c extendfng around the edges thereof except on the top sides, andthe bolt holes (1 in pairs through the web portion and in proximity tothe top sides thereof.

6 are the sides of the frame having the inturned flanges f at the endsthereof and suitable bolt holes through said flanges registering withthe bolt holes (1 when the sides 6 are placed in position to be securedto the ends a. g are bolts inserted through the bolt holes (Z and thebolt holes in the flanges f and secured by the nuts h, thus firmlysecuring the sides and ends together and forming a steady and rigidframe for the machine.

1' are slots arranged at regular intervals in the top edges of the sides6, and are holes arranged at regular intervals through the sides 6towards the upper edges thereof and midway between the slots i.

k is a plate or pallet supported on the frame of the machine andextending slightly beyondsaid frame, the sides and ends of said platehaving the longitudinally and downwardly depending flanges Z towards theouter edges thereof, and the lateral flanges m de pending downwardlyfrom the underside of the plate and arranged at regular intervalsthroughout the length thereof and forming part with the side flanges Z.

n are openings through the plate is of rectangular shape and extendingfrom side to side of said plate between the flanges Z and midway betweeneach pair of flanges m. The

. plate or pallet 7c rests upon the upper edges of the frame formed bythe ends a, and sides c with the flanges Z to theoutside of the saidframe and the lateral flanges mresting loosely within the slots 11.

0 are cores preferably hollow and having the closed in ends 2) and thelugs g extending downwardly from said ends through which are the holes1". The cores 0 are shown as semi-circular in cross section, though itmust be understood that any desired shape in cross section may be used.The said cores are arranged to fit just within the openings at both atthe sides and the ends and rest upon the upper edges of the sides 6 ofthe frame, the lugs q extending downwardly through the said openings 'nand over the outer faces of the sides 0, the holes 1" registering withthe holes in the said sides. 8 are screws inserted through the holes 1"and j and suitably countersunk in the lugs q and holding said coressecurely in position on the sides 6.

t are brackets forming part with the ends a of the frame and extendingupwardly and rearwardly therefrom and having circular bosses a formedthereon and circular horizontal orifices 12 through the center thereof.

to is a rod inserted through the orifices 12 in the bosses a andextending beyond the said bosses at each end of the machine.

0c is a mold frame having the brackets y extending rearwardly from eachend thereof,

each of the said brackets having a circular boss formed at the outer endthereof and a central orifice z forming a journal bearing into whichextends projecting ends of the rod to, the inner faces of said bracketsy abutting the outer surface of the bosses u. The mold frame is thushingedly' connected to the frame of the machine.

2 are cotter pins inserted through suitable holes in the rod toimmediately adjoining the inner surface of the bosses 11,, thus holdingthe said rod securely in position and preventing the mold frame as frombeing displaced.

The mold frame as is formed of the front and rear sides 3 and 4respectively, longitudinally arranged with the machine and the endpieces 5 preferably forming part with the rear side 4 and extendinglaterally therefrom and abutting the front side 3 and the cross pieces 6extending between said sides and preferably forming, part with the rearside and arranged at equal distances apart so that when the mold frameat is swung downwardly on to the plate 7c, the said cross pieces 6 willcome into close contact with the said plate in in between the cores 0,and the end pieces 5 will come into contact with the plate 7c inproximity to the outer cores 0 thus forming a plurality of boxes ormolds for molding purposes. The cross and end pieces of the mold frameas are formed V- shaped in cross section, the point of the V coming intocontact with the plate is and the larger portion of the said cross andend pieces being level with the upper edges of the sides 3 and 4. Thisparticular formation of the cross and end pieces forming the molds isnot essential to the invention as they may be made in any desired shapeaccording to the design of tile required. The front side 3 of the moldframe is in a separate piece and secured by the bolts? to two of thecross pieces 6 and so arranged that it may be pulled outwardly away fromthe ends of said cross pieces to a limited extent, for otherwise in theswinging of the said frame on its hinges, the said side piece 3 wouldinterfere with the material filling the molds. The heads of the bolts 7do not come into direct contact with the outer surface of the said side3 when the latter is abutting the cross pieces 6 and the ends 5, andtherefore the said. side 3 may be pulled outwardly, sliding on theshanks of the bolts 7 and in order to facilitate the handling of thesaid side 3 and mold frame handles 8 are provided extending therefrom ateach end and preferably forming part therewith.

9 are looking arms for securely holding the side 3 tightly abutting theends and cross pieces of the mold frame. The arms 9 are pivotallysecured to the side 3 by suitable bolts 10 and have a vertical slot 11from the under edge thereof, the edges of the said slot being beveledfrom the top portion to the lower edge of the arm. The outer ends of thearms 9 are turned outwardly forming handles 12 to facilitate theiroperation. The arms 9 are pivoted so as to swing inwardly and bringthemouth of the slots 11 in alinement with the shanks of the bolts 7,consequently.when the mold frame is in its downward position and incontact with the plate 7c, the said arms 9 when in engagement with saidbolts force the side 3 tightly against the cross pieces 6 and end pieces5, the beveled edges of the slots acting as a wedge and pushing againstthe heads of the bolts.

In order to lift the mold frame, the arms 9 are released from engagementwith the bolts and the side 3 pulled outwardly on the'shank 0f the boltsas explained.

13 are lugs extending from the rear of the, end pieces a and forming asupport for the mold frame :20 for preventing its further backwardmovement, and 14 are lugs from the said mold frame 00 which come intocontact with the lugs 13 on the opening up of the said frame.

15 is a bracket securely bolted by the bolts 16 to the rear portion ofone of the end pieces a.

17 is the upper arm of the bracket 15 and 18 the lower arm, said armshaving the orifices 19 and 20 respectively therethrough at the outerends thereof, and the upper arm having its laterally extending portion,in

which the said orifice 19 is arranged, on the same level as the uppersurface of the mold frame as.

21 is an elbowed rod supported by the bracket 15 and having the verticalsection thereof inserted through the orifices 19 and 20 in the arms ofthe said bracket 15, and the horizontal section extending across one endof said machine when in its closed position, from above the upper arm17.

22 is an open frame having its longitudinal pieces 23 and 24 extendingbeyond the frame portion of the machine, said longitudinal pieces havingthe orifices 25 therethrough, through which the horizontal section ofthe elbowed rod 21 is inserted. The frame 22 is securely held in placeon the rod 21 by the cotter pins 26 and washers 27 on either side of theouter arm 23. The longitudinal piece 24 extends beyond the rod 21 andterminates in the shoe 28 which in the vertical open position of theframe 22 engages the vertical section of the elbowed rod 21 and supportssaid frame in a leaning position clear of the mold frame when in itsraised position. the other end of the frame 22 a handle 29 is securelyattached, while intermediate of the length of the longitudinal piece 23a guide plate or block 30 is secured to the outer side, which in theclosed position of the frame abuts the outer surface of the side 3 ofthe mold bar as. The frame 22 thus forms around the mold frame, acombing or hopper to hold the loose material which is to be packed intothe molds from falling away from the edges of the said molds.

In assembling the parts of the machine for the purpose of molding, thecores 0 are set in position and secured as ex lained, to the sides a.The late 76 is then p aced over the said cores 0 t 1e under surfaceresting on the top edges of the ends a and sides 6, the cores 0 passingthrough the openings n in the said plate. The complete half cylindersformed by the cores 0 now extend through the openings n, the sides ofsaid openings abutting the surfaces of the said cores and forming atight bottom through which no material can pass. The mold frame a; isthen swung upon its hinges to its downward position and the arms qlocked on the bolts 7 as explained, forcing the side 3 tightly up to theends of the end and cross pieces 5 and 6 respectively and against theclosed ends of the cores 0, the other side 4 being also close to andabutting the other ends of the cores 0. The frame 22 is then swunginwardly on its pivot towards the end a and then let down above the moldframe :20 forming a combing as already explained. It will be thus seenthat there are a plurality of mold boxes in readiness for filling withthe material of which the tiles are to be made, the combing formed bythe frame 21 permitting the filling in of more material than is actuallyrequired to fill the molds. Subsequent to filling in the molds with thematerial, the said material is tamped with a suitable tamping instrumentand packed very tightly in the said molds and when it has been tampedsufficiently the frame 22 is swung, on its pivot, outwardly over the topsurface of the mold frame 90 thus scraping off all surplus material fromthe top of the said molds.

The use of the frame 22 is most advantageous as it serves the purpose ofa hopper to facilitate the proper filling of the molds and also cleansoff all surplus material from the top surface of the molds leaving aneven finished surface to the material in the molds.

The double hinge action permissible in the use of the frame 22, allowsit to swing freely in a horizontal direction and also allows it to bemoved vertically so that it can be lifted clear of the mold frame at anypoint and when the tops of the molds are properly finished off may beswung clear of the machine to permit the removal of the mold frame x.

1n removing the mold frame the locking arms 9 are released and the side3 pulled outwardly as described, the frame as may then be swung upwardlyon its hinges clear of the material molded the front plate 3 clearingthe upper edges of same. The plate Zc may then be removed with the halftiles formed thereon leaving the cores 0 still secured to the frame ofthe machine and in order to hasten the work, spare plates lc may be usedand the molding continued, using the same cores and the same frame.

In the drawings and foregoing specification a machine for forming halftiles has been described and it must be understood that while thesurface of the plate is is shown smooth, suitable ribs or projectionsmay be arranged thereon for indenting the edges of the halftile, ordepressions may be made in the said plate to form ribs or ridges uponthe edges of the half tile, as may be desired so that when the halftiles are laid together they will have inversely, projecting ribs anddepressions on the meeting edges to lock them securely together.

It must also be understood that without departing from the spirit of theinvention a mold plate forming the bottom half of a complete tile may belaid upon the frame in a similar manner to the plate 7c and the coresset in the same in any suitable manner instead of being secured to theframe so that when the mold frame is swung into its downward position amold for forming a complete tile would be formed.

The cores herein described and shown are attached to the side bars, butit must be understood, that, without departing from the spirit of myinvention, said cores may be attached to a separate bar or frameadjustably arranged within the machine frame so that in the operation ofthe machine the cores may be dropped away from the pallet or plate ifdesired. Further, the construction of the frame may be to some extentaltered, as the ends may be rigidly held together in dependent of thesides of the frame, and the said sides may be arranged to fit intopreared slots in the ends of the frame.

What I claim'as my invention is 1. In a molding machine, the combinationwith an open frame, of a plate or pallet resting on and covering in saidframe and forming the bottom of the mold and having an openingtherethrough, a core rigidly secured to and supported from said frameand rising through said opening in said pallet, and a mold frame closingdown on said pallet and forming the sides of the mold around said coreand having a separable outer side adapted to be moved laterally,substantially as and for the purpose specified.

'2. In a molding machine, the combination with the frame, of a plate orpallet supported from said frame and forming the bottom of the molds andhaving a plurality of openings therethrough, a plurality of coresrigidly secured to said frame and rising through the openings in saidplate, and a mold frame hingedly secured to the aforesaid frame andclosing down on said plate and having a plurality of laterally arrangeddivisions and a separable outer side secured thereto, and adapted to bemoved laterally therefrom to clear the ends of said cores as and for thepur pose specified.

3. In a molding machine, the combination with a frame, of a plate orpallet resting upon the edges of said frame and forming the bottom ofthe molds and having reinforcing flanges from the underside thereof anda plurality of rectangular openings there through, a plurality of coresextending across said frame and rigidly secured thereto and risingthrough the openings in said plate, a mold frame hingedly secured tosaid frame and having a plurality of lateral divisions contacting withsaid plate in the closed position of said frame and a separable outerside secured to said divisions and. abutting the outer ends thereof andadapted to be moved outwardly from the ends of said divisions, and meansfor holding said outer side closely abutting said arms and for releasingthe said side, as and for the purpose specified.

4. In a molding machine, the combination with a frame, of a plate orpallet resting upon the edges of said frame and forming the bottom ofthe molds and having reinforcing flanges from the underside thereof anda plurality of rectangular openings therethrough, a plurality of coresextending across said frame and rigidly secured thereto and risingthrough the openings in said plate, a mold frame hingedly secured tosaid frame and having a plurality of lateral divisions contacting withsaid plate in the closed position of said. frame and a separable outerside adapted to be moved outwardly from the ends of said. divisions andhaving orifices therethrough, bolts secured to said mold frame andextending through the orifices in said separable side and having theirheads to the outside thereof, and arms pivotally secured to saidseparable side having slots engaging the shanks and inner surface of thehead of the said bolts and holding said separable side closely abuttingthe ends of the lateral divisions of said mold frame, as and for thepurpose specified.

5. In a molding machine, the combination with a frame having separablesides and ends rigidly secured together said ends having rearwardlyprojecting brackets therefrom, of a plate or pallet resting upon theedges of said frame and forming the bottom of the molds and havinglongitudinal reinforcing flanges from the underside toward the edges anda plurality of lateral flanges from the underside joining saidlongitudinal flanges at intervals throughout the length thereof and aplurality of rectangular openings between said lateral flanges throughsaid plate, a plurality of cores extending across said frame and rigidlysecured to the sides thereof and rising upwardly therefrom through saidopenings and registering therewith, a mold frame having re'arwardlyprojecting lugs therefrom registering with the brackets on the ends ofthe frame and hingedly connected therewith and a plurality of divisionscontacting with the aforesaid plate in the closed position of said frameand a separable outer side secured to the outer ends of said divisionsby suitable bolts adapted to be moved outwardly said in said frame andforming the bottom of the mold and having an opening therethrough, acore rigidly secured to said frame and rising through said opening, amold frame closing down on said plate and forming the sides of the moldaround. said core, and. an open frame resting on the upper side of said.mold frame and pivotally supported from the aforesaid frame, as and forthe purpose specified.

7. In a device of the class described, in combination, a frame, a moldsupported thereby, a bracket fixedly secured to one end of said frame,and an open frame resting on the upper side of said mold and pivotallysupported from said bracket and adapted to be swung horizontally orvertically, substantially as described.

8. In a device of the class described, in combination, a frame, a moldsupported thereby, a bracket secured to one end of said frame having ano'rifice in the upper arm and an orifice in the lower arm thereof, anelbowed arm turning in the orifices in the arms of said bracketandsupported thereby, and an open frame having two of its sidesextending beyond the frame portion and pivoted 011 the horizontalportion of said elbowed arm and one of said extending sides extendingbeyond said pivot point and having a shoe formed thereof to engage thevertical section of said elbowed arm when the said frame is in avertical position said frame being suitably secured on said elbowed armand adapted to swing in horizontal and upward and outward direction toand from and across said mold frame, as and for the purpose specified.

9. In a molding machine, the combination with the frame, of a plate orpallet covering in said frame and forming the bottom of the mold andhaving an opening therethrough, a core rigidly secured to said frame andrising through said opening, a mold frame closing down on said plate andforming the sides of the mold around said core, a bracket secured to oneend of the aforesaid frame having an orifice in the upper arm and anorifice in the lower arm thereof, an elbowed arm turning .in theorifices in the arm of said bracket and supported thereby, and an openframe having two of its sides extending beyond the frame portion andpivoted on the horizontal portion of said elbowed arm and one of saidextending sides extending beyond said pivot point and having a shoeformed thereon to engage the vertical section of said elbowed arm whenthe said frame is in a vertical position, said frame being pivoted onsaid elbowed arm and adapted to swing in a horizontal and upward andoutward direction to and from and across said mold frame, as and for thepurpose specified.

10. In a molding machine, the combination with a frame having separablesides and ends rigidly secured together said ends having rearwardlyprojecting brackets therefrom, of a plate or pallet resting upon theedges of said frame and forming the bottom of the mold and havinglongitudinal reinforcing flanges from the under side towards the edgesand a plurality of lateral flanges from the under side joining saidlongitudinal flanges at intervals throughout the length thereof and aplurality of rectangular openings betweensaid lateral flanges throughsaid frame, a plurality of cores extending across said frame and rigidlysecured to the sides thereof and rising upwvardly therefrom through saidopening and registering therewith, a mold frame having rearwardlyprojecting lugs therefrom registering with the brackets on the ends ofthe frame and hingedly connected therewith and a plurality of divisionscontacting with the aforesaid plate in the closed position of said frameand a separable outer side secured to the outer ends of said divisionsby suitable bolts, and adapted to be moved outwardly from said divisionssaid bolts having shanks projecting outwardly through said side, armspivotally secured to said separable side and having slots engaging theshanks and inner surface of the heads of said bolts and forcing saidside inwardly to the ends of said division, and an open frame resting onthe upper side of said mold box and pivotally supported from theaforesaid frame, as and for the purpose specified.

Signed at the city of London, county of Middlesex, in the Province ofOntario, Dominion of Canada, this 3rd day of October, 1906.

HENRY POOOCK.

